| 摘要 |
PROBLEM TO BE SOLVED: To prevent the dislocation of the parting line between split molds of a pair by mold clamping force by loosely fitting one of the split molds constituting a set of molds to the side of a mold fitting plate and connecting both split molds to each other by a joint. SOLUTION: In a blow mold device 11, a pair of the split molds forming a blow cavity 12 is made a set of the molds, and the sets of the molds are fitted in parallel to the mold fitting plates 15 and 16. One split mold 13 is fitted by a bolt 17 inserted into the bolt hole 23 of the loose hole of the mold fitting plate 15, so that the split mold 13 and the mold fitting plate 15 are moved sideward to be relatively dislocated. The other split mold 14 is fitted to the mold fitting plate 16 by a positioning pin 18 and the bolt 17 and fixed. Both split molds are connected integrally to both parting surfaces, and the joint by a taper pin 19 and a step 21 is provided for preventing the dislocation of the parting line. |
